Patents by Inventor David F. Birch

David F. Birch has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Handheld apparatus for semi-automatically feeding and inserting members into Braille signs
    Patent number: 6908009
    Abstract: An apparatus is disclosed for semi-automatically feeding and inserting spherically and non-spherically shaped members into pre-drilled holes on an architectural sign face corresponding to the pattern of Braille letters designed to be formed in the sign. A device is disclosed for holding a reservoir of spherically or non-spherically shaped members, delivering the members from the cylindrical storage tube to a delivery end whereby the member is forcibly inserted into the pre-drilled hole on the sign face by pressure from the user in an arrangement desired for accurately duplicating Braille letters.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: June 21, 2005
    Inventors: Reuven Rahamim, David F. Birch
  • Apparatus for automatically feeding and inserting members into braille signs
    Patent number: 6537071
    Abstract: An apparatus is disclosed for automating the insertion of spherically and non-spherically shaped members on an architectural sign face into pre-drilled holes in the sign corresponding to the pattern of Braille letters designed to be formed in the sign. A device is disclosed for holding a reservoir of spherically or non-spherically shaped members, delivering the members from the reservoir pan to a spindle and hammer assembly whereby the member is forcibly inserted into the pre-drilled hole on the sign face by the spindle and hammer in an arrangement desired for accurately duplicating Braille letters.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: March 25, 2003
    Assignee: Accent Signage Systems, Inc.
    Inventors: Reuven Rahamim, David F. Birch
  • APPARATUS FOR AUTOMATICALLY FEEDING AND INSERTING MEMBERS INTO BRAILLE SIGNS
    Publication number: 20030022137
    Abstract: An apparatus is disclosed for automating the insertion of spherically and non-spherically shaped members on an architectural sign face into pre-drilled holes in the sign corresponding to the pattern of Braille letters designed to be formed in the sign. A device is disclosed for holding a reservoir of spherically or non-spherically shaped members, delivering the members from the reservoir pan to a spindle and hammer assembly whereby the member is forcibly inserted into the pre-drilled hole on the sign face by the spindle and hammer in an arrangement desired for accurately duplicating Braille letters.
    Type: Application
    Filed: July 27, 2001
    Publication date: January 30, 2003
    Inventors: Reuven Rahamim, David F. Birch